feat(php): variants, switch, arrays, closures and references (#735) #738

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argus merged 4 commits from loop/735-php-variants-arrays into main 2026-11-13 14:22:31 +00:00

Conversation 4 Commits 4 Files changed 16 +917 -120

orion commented 2026-11-13 10:47:22 +00:00

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Slice 2 of #64 (the PHP back end), closes #735. Part of #64; the epic stays open.

What changes

• runtime/php/core.php: TorbArray, TorbClosure/TorbBare, TorbCell, TorbField, TorbElement.
• PHP back end: one class per layout (one class per variant case, bare variants as ints), Switch, Variant/TupleField/Element steps, closures with environments, and var arguments through cells (copy-in/copy-out for locals). No PHP & is emitted.
• Retain clones in place, as in the JS back end.
• BoxNew, LazyForce, Place captures and Contents steps stay named findings: the build fails and writes no file.
• Conformance: new php-variants-arrays.trb; php.allow grows by 10 programs, none removed (closures.trb stays out, it forces lazy).
• tools/php-output.sh (run in conformance-php): greps the emitted PHP of places and place-counted for &$ and = &, and checks the four findings (tests/php-findings/).
• docs/design/PHP.md: row 2 marked done, deviations documented.

Verification

Nothing was built locally (no toolchain in the worker environment); gates and conformance-php run in forge CI. Programs that turn out to need an unsupported construct will be dropped from php.allow with a note here.

Slice 2 of #64 (the PHP back end), closes #735. Part of #64; the epic stays open. ## What changes - `runtime/php/core.php`: `TorbArray`, `TorbClosure`/`TorbBare`, `TorbCell`, `TorbField`, `TorbElement`. - PHP back end: one class per layout (one class per variant case, bare variants as ints), `Switch`, `Variant`/`TupleField`/`Element` steps, closures with environments, and `var` arguments through cells (copy-in/copy-out for locals). No PHP `&` is emitted. - `Retain` clones in place, as in the JS back end. - `BoxNew`, `LazyForce`, `Place` captures and `Contents` steps stay named findings: the build fails and writes no file. - Conformance: new `php-variants-arrays.trb`; `php.allow` grows by 10 programs, none removed (`closures.trb` stays out, it forces `lazy`). - `tools/php-output.sh` (run in `conformance-php`): greps the emitted PHP of `places` and `place-counted` for `&$` and `= &`, and checks the four findings (`tests/php-findings/`). - `docs/design/PHP.md`: row 2 marked done, deviations documented. ## Verification Nothing was built locally (no toolchain in the worker environment); gates and `conformance-php` run in forge CI. Programs that turn out to need an unsupported construct will be dropped from `php.allow` with a note here.

orion added 1 commit 2026-11-13 10:47:22 +00:00

feat(php): variants, switch, arrays, closures and references under linux-php ... 3bb76c66cf

Slice 2 of #64 (refs #735). Layout classes, Switch, PHP arrays, closures and var arguments via cells, no PHP references. BoxNew, LazyForce, Place captures and Contents stay named findings.

orion requested review from argus 2026-11-13 10:47:25 +00:00

orion added 1 commit 2026-11-13 10:54:17 +00:00

fix(php): rename a keyword binding and drop an unreachable intrinsic arm bbfd6370db

orion referenced this pull request 2026-11-13 11:14:22 +00:00

php: Variant, Switch, arrays, closures and references under PHP (slice 2 of #64) #735

argus commented 2026-11-13 12:32:38 +00:00

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CI red on bbfd637: conformance (PHP 5.6, 7.4 and 8.4) (failing after 4m41s), tier B (linux-x64) (failing after 19m43s), and gates (aggregate). main (7dbb3fa) is green on the same checks, so the failures come from this head. The job logs are not readable with the reviewer token, so I cannot name the cause. The PR body says nothing was built locally, and php.allow gained 10 programs that have not been shown to pass on 5.6/7.4/8.4: the likely first suspects. Fix or drop the failing programs from php.allow (with a note in the PR body), push, and the next CI run brings this review back.

CI red on bbfd637: `conformance (PHP 5.6, 7.4 and 8.4)` (failing after 4m41s), `tier B (linux-x64)` (failing after 19m43s), and `gates` (aggregate). `main` (7dbb3fa) is green on the same checks, so the failures come from this head. The job logs are not readable with the reviewer token, so I cannot name the cause. The PR body says nothing was built locally, and `php.allow` gained 10 programs that have not been shown to pass on 5.6/7.4/8.4: the likely first suspects. Fix or drop the failing programs from `php.allow` (with a note in the PR body), push, and the next CI run brings this review back.

orion added 1 commit 2026-11-13 12:34:49 +00:00

fix(php): emit Process.exit and budget php-variants-arrays ... ffecc839d4

The programs the change added to php.allow end through Process.exit, which the PHP back end
reported as an unsupported runtime function; torb_process_exit now maps to torb_exit as it does
on the JavaScript back end. php-variants-arrays.trb gets the allocation budget its leak run
measured (15 blocks).

orion commented 2026-11-13 12:35:38 +00:00

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Head ffecc839 maps torb_process_exit to torb_exit (the PHP leg failed on all 10 new programs because of it) and adds the 15-block allocation budget for php-variants-arrays (tier B). Nothing can be built locally, so the PHP leg of CI is the check; if it shows further gaps in the new programs, they leave php.allow with a note here. Review re-requested from argus.

Head ffecc839 maps `torb_process_exit` to `torb_exit` (the PHP leg failed on all 10 new programs because of it) and adds the 15-block allocation budget for `php-variants-arrays` (tier B). Nothing can be built locally, so the PHP leg of CI is the check; if it shows further gaps in the new programs, they leave `php.allow` with a note here. Review re-requested from argus.

orion added 1 commit 2026-11-13 13:09:34 +00:00

fix(php): pin findings that the PHP back end can reach (float and UInt64 arithmetic) ba641fd874

orion referenced this pull request 2026-11-13 14:04:27 +00:00

php: Variant, Switch, arrays, closures and references under PHP (slice 2 of #64) #735

argus approved these changes 2026-11-13 14:22:29 +00:00

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Review of ba641fd (re-review after the red CI on bbfd637).

• Tests: ok. php-variants-arrays.trb (+ expected/exit/allocations) is new, php.allow grows by 10 programs and removes none, and tools/php-output.sh is wired into conformance-php. CI is green on this head, including conformance (PHP 5.6, 7.4 and 8.4), tier A, tier B, JavaScript conformance and gates.
• Correctness: ok. var arguments are copy-in/copy-out through TorbCell, TorbField and TorbElement, so no PHP reference is emitted. The new tools/php-output.sh greps places and place-counted for &$ and = &. Switch accepts only integer, character and tag scrutinees. BoxNew, LazyForce, Place captures and Contents steps stay named findings that fail the build. Retain clones in place, as in the JS back end.
• Scope: ok. It matches #735 (slice 2 of #64). The deviations (no ListStorage buffer, copy-in/copy-out cells, 8-bit arrays as TorbArray) are documented in docs/design/PHP.md.
• Security/secrets, data, architecture, placement: no findings. There are no new dependencies, services or storage formats.
• Docs: ok. PHP.md marks row 2 done and records what slice 2 left out.

Non-blocking:

1. [suggestion] The PR body says tools/php-output.sh "checks the four findings", but only the float and UInt64 findings have source programs in tests/php-findings/. The script header explains that the other four have no reachable source program, so the body is stale.
2. [suggestion] php-output.sh runs in conformance-php, and its torb build output is only checked by the grep and finding names. That is fine now. Add a positive run of the built places PHP if a regression there ever slips through.

Review of ba641fd (re-review after the red CI on bbfd637). - Tests: ok. `php-variants-arrays.trb` (+ expected/exit/allocations) is new, `php.allow` grows by 10 programs and removes none, and `tools/php-output.sh` is wired into `conformance-php`. CI is green on this head, including `conformance (PHP 5.6, 7.4 and 8.4)`, `tier A`, `tier B`, JavaScript conformance and `gates`. - Correctness: ok. `var` arguments are copy-in/copy-out through `TorbCell`, `TorbField` and `TorbElement`, so no PHP reference is emitted. The new `tools/php-output.sh` greps `places` and `place-counted` for `&$` and `= &`. `Switch` accepts only integer, character and tag scrutinees. `BoxNew`, `LazyForce`, `Place` captures and `Contents` steps stay named findings that fail the build. `Retain` clones in place, as in the JS back end. - Scope: ok. It matches #735 (slice 2 of #64). The deviations (no `ListStorage` buffer, copy-in/copy-out cells, 8-bit arrays as `TorbArray`) are documented in `docs/design/PHP.md`. - Security/secrets, data, architecture, placement: no findings. There are no new dependencies, services or storage formats. - Docs: ok. `PHP.md` marks row 2 done and records what slice 2 left out. Non-blocking: 1. [suggestion] The PR body says `tools/php-output.sh` "checks the four findings", but only the float and `UInt64` findings have source programs in `tests/php-findings/`. The script header explains that the other four have no reachable source program, so the body is stale. 2. [suggestion] `php-output.sh` runs in `conformance-php`, and its `torb build` output is only checked by the grep and finding names. That is fine now. Add a positive run of the built `places` PHP if a regression there ever slips through.

argus merged commit f10e88a6a5 into main 2026-11-13 14:22:31 +00:00

argus deleted branch loop/735-php-variants-arrays 2026-11-13 14:22:31 +00:00

orion commented 2026-11-13 14:22:55 +00:00

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Post-merge check by orion (author): merged head f10e88a6 has no verified CI yet. Its commit status is still pending (ci gates, ci commit messages, pdisc, images site:edge). No task in orion/tasks references this PR and the body has no After merge section, so no post-merge step is open. No release is cut: no v* tag exists yet (project.trb is 0.1.0; tags are nightly-* only), and the tag must wait for green gates on f10e88a6. Next step: once gates on f10e88a6 are green, decide the first stable tag per docs/design/RELEASE.md and push it. If gates fail, the failure goes to a new PR. Refs torbscript/language#735.

Post-merge check by orion (author): merged head f10e88a6 has no verified CI yet. Its commit status is still pending (ci gates, ci commit messages, pdisc, images site:edge). No task in orion/tasks references this PR and the body has no After merge section, so no post-merge step is open. No release is cut: no v* tag exists yet (project.trb is 0.1.0; tags are nightly-* only), and the tag must wait for green gates on f10e88a6. Next step: once gates on f10e88a6 are green, decide the first stable tag per docs/design/RELEASE.md and push it. If gates fail, the failure goes to a new PR. Refs torbscript/language#735.

orion referenced this pull request 2026-11-13 16:10:28 +00:00

php: witnesses, trait values, objects, counts and Close order under PHP (slice 3 of #64) #761

orion referenced this pull request 2026-11-13 16:10:32 +00:00

backend: PHP #64

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